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Routines |
| Prev: 76D3 | Up: Map | Next: 77DB |
| 76D7 | CALL $692C | Call 692C. | ||
| 76DA | LD A,($7825) | Return if *7825 is zero. | ||
| 76DD | AND A | |||
| 76DE | RET Z | |||
| 76DF | XOR A | Write 00 to *7825. | ||
| 76E0 | LD ($7825),A | |||
| 76E3 | LD A,($782A) | Return if *Action is not zero. | ||
| 76E6 | AND A | |||
| 76E7 | RET NZ | |||
| 76E8 | EXX | Switch to the shadow registers. | ||
| 76E9 | LD A,C | A=C'. | ||
| 76EA | EXX | Switch back to the normal registers. | ||
| 76EB | CP $44 | Jump to 7744 if A is lower than 44. | ||
| 76ED | JR C,$7744 | |||
| 76EF | JR NZ,$7729 | Jump to 7729 if A is not equal to 44. | ||
| 76F1 | LD HL,$7840 | HL=7840. | ||
| 76F4 | LD A,(HL) | Jump to EC2A if *HL is not zero. | ||
| 76F5 | AND A | |||
| 76F6 | JP NZ,$EC2A | |||
| 76F9 | LD (HL),$01 | Write 01 to *HL. | ||
| 76FB | CALL $EC0F | Call EC0F. | ||
| 76FE | NOP | No operation. | ||
| 76FF | LD HL,($7844) | HL=*Score+01F4. | ||
| 7702 | LD DE,$01F4 | |||
| 7705 | ADD HL,DE | |||
| 7706 | LD ($7844),HL | Write HL to *Score. | ||
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Print the "THE RACE IS ON!" messaging in the footer.
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| 7709 | LD A,$96 | A=96 (INK: YELLOW, PAPER: RED FLASH: ON). | ||
| 770B | LD HL,$BAA6 | HL=Messaging_RaceIsOn. | ||
| 770E | CALL PrintFooterColourString | Call PrintFooterColourString. | ||
| 7711 | CALL Sounds_TheRaceIsOn | Call Sounds_TheRaceIsOn. | ||
| 7714 | CALL PrintDemoMode | Call PrintDemoMode. | ||
| 7717 | XOR A | Write 00 to *7824. | ||
| 7718 | LD ($7824),A | |||
| 771B | INC A | Write 01 to *781A. | ||
| 771C | LD ($781A),A | |||
| 771F | LD HL,$0B6E | Write 0B6E to *7841. | ||
| 7722 | LD ($7841),HL | |||
| 7725 | NOP | No operation. | ||
| 7726 | CALL $6D49 | Call 6D49. | ||
| 7729 | CP $46 | Jump to 7742 if A is higher than 46. | ||
| 772B | JR NC,$7742 | |||
| 772D | LD DE,$0032 | HL=*Score+0032. | ||
| 7730 | LD HL,($7844) | |||
| 7733 | ADD HL,DE | |||
| 7734 | LD ($7844),HL | Write HL to *Score. | ||
| 7737 | POP HL | Restore HL and DE from the stack. | ||
| 7738 | POP DE | |||
| 7739 | PUSH DE | Stash DE and HL on the stack. | ||
| 773A | PUSH HL | |||
| 773B | LD HL,$FFFA | HL=FFFA. | ||
| 773E | ADD HL,DE | HL+=DE. | ||
| 773F | SET 7,(HL) | Set bit 7 of *HL. | ||
| 7741 | RET | Return. | ||
| 7742 | JR NZ,$77A2 | Jump to 77A2 if {} is not zero. | ||
| 7744 | NOP | No operation. | ||
| 7745 | NOP | |||
| 7746 | NOP | |||
| 7747 | NOP | |||
| 7748 | NOP | |||
| 7749 | NOP | |||
| 774A | POP HL | Restore HL and DE from the stack. | ||
| 774B | POP DE | |||
| 774C | LD HL,($783E) | HL=*783E. | ||
| 774F | LD BC,$0008 | BC=0008. | ||
| 7752 | LD A,C | A=C. | ||
| 7753 | SET 7,(HL) | Set bit 7 of *HL. | ||
| 7755 | ADD HL,BC | HL+=BC. | ||
| 7756 | DEC A | Decrease A by one. | ||
| 7757 | JR NZ,$7753 | Jump to 7753 until A is zero. | ||
| 7759 | LD HL,$FFFA | HL=FFFA. | ||
| 775C | ADD HL,DE | HL+=DE. | ||
| 775D | RES 7,(HL) | Reset bit 7 of *HL. | ||
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This entry point is used by the routine at EC2A.
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| 775F | PUSH HL | Stash HL on the stack. | ||
| 7760 | LD B,$06 | B=06. | ||
| 7762 | PUSH BC | Stash BC on the stack. | ||
| 7763 | CALL RemoveSprite | Call RemoveSprite. | ||
| 7766 | CALL $6B2D | Call 6B2D. | ||
| 7769 | LD C,$28 | C=28. | ||
| 776B | LD HL,$0800 | HL=0800. | ||
| 776E | LD A,$02 | A=02. | ||
| 7770 | OUT ($FE),A | OUT FE | ||
| 7772 | XOR %00010000 | Flip bit 4. | ||
| 7774 | LD D,A | D=A. | ||
| 7775 | LD B,C | B=C. | ||
| 7776 | DJNZ $7776 | Decrease counter by one and loop back to 7776 until counter is zero. | ||
| 7778 | DEC HL | Decrease HL by one. | ||
| 7779 | LD A,H | Is HL zero? | ||
| 777A | OR L | |||
| 777B | LD A,D | A=D. | ||
| 777C | JR NZ,$7770 | Jump to 7770 if HL is not zero. | ||
| 777E | CALL RemoveSprite | Call RemoveSprite. | ||
| 7781 | CALL $7314 | Call 7314. | ||
| 7784 | LD C,$14 | C=14. | ||
| 7786 | LD HL,$1000 | HL=1000. | ||
| 7789 | LD A,$06 | A=06. | ||
| 778B | OUT ($FE),A | OUT FE | ||
| 778D | XOR %00010000 | Flip bit 4. | ||
| 778F | LD D,A | D=A. | ||
| 7790 | LD B,C | B=C. | ||
| 7791 | DJNZ $7791 | Decrease counter by one and loop back to 7791 until counter is zero. | ||
| 7793 | DEC HL | Decrease HL by one. | ||
| 7794 | LD A,H | Is HL zero? | ||
| 7795 | OR L | |||
| 7796 | LD A,D | A=D. | ||
| 7797 | JR NZ,$778B | Jump to 778B if HL is not zero. | ||
| 7799 | POP BC | Restore BC from the stack. | ||
| 779A | DJNZ $7762 | Decrease counter by one and loop back to 7762 until counter is zero. | ||
| 779C | POP HL | Restore HL from the stack. | ||
| 779D | SET 7,(HL) | Set bit 7 of *HL. | ||
| 779F | JP $6ED4 | Jump to 6ED4. | ||
| 77A2 | NOP | No operation. | ||
| 77A3 | NOP | |||
| 77A4 | NOP | |||
| 77A5 | NOP | |||
| 77A6 | NOP | |||
| 77A7 | NOP | |||
| 77A8 | LD DE,$03E8 | HL=*Score+03E8. | ||
| 77AB | LD HL,($7844) | |||
| 77AE | ADD HL,DE | |||
| 77AF | LD ($7844),HL | Write HL to *Score. | ||
| 77B2 | CALL $7420 | Call 7420. | ||
| 77B5 | CALL RemoveSprite | Call RemoveSprite. | ||
| 77B8 | NOP | No operation. | ||
| 77B9 | NOP | |||
| 77BA | NOP | |||
| 77BB | NOP | |||
| 77BC | LD HL,$7839 | HL=Lives. | ||
| 77BF | LD (HL),$05 | Write 05 to *HL. | ||
| 77C1 | CALL GetLevelPassword | Call GetLevelPassword. | ||
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Print the "NEW CODE ABCDE-PRESS KEY TO PLAY" messaging in the footer.
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| 77C4 | LD A,$9F | A=9F (INK: WHITE, PAPER: MAGENTA FLASH: ON). | ||
| 77C6 | LD HL,$BAC6 | HL=Messaging_NewCode. | ||
| 77C9 | CALL PrintFooterColourString | Call PrintFooterColourString. | ||
| 77CC | CALL Sounds_LevelComplete | Call Sounds_LevelComplete. | ||
| LevelComplete_Input | 77CF | CALL KeyboardInput | Call KeyboardInput. | |
| 77D2 | AND A | Jump to LevelComplete_Input until any key is pressed. | ||
| 77D3 | JR Z,LevelComplete_Input | |||
| 77D5 | CALL PrintDemoMode | Call PrintDemoMode. | ||
| 77D8 | JP GameInitialisation_0 | Jump to GameInitialisation_0. | ||
| Prev: 76D3 | Up: Map | Next: 77DB |